Flight Incheon International Airport departs from Seoul Incheon International Airport at 11:05 and arrives at Da Nang Da Nang International Airport at 13:50.
The flighttime is about 4h 45m. The distance travelled ("as the bird flies"): 2275 Km. So the average speed is roughly 479 Km.
There is an 2 hour time difference between Seoul and Da Nang
